Messages in this thread | | | Date | Wed, 16 Sep 2015 16:38:04 +0000 (UTC) | From | Mathieu Desnoyers <> | Subject | Re: [RFC PATCH v2 7/9] arm64: allocate sys_membarrier system call number |
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----- On Sep 16, 2015, at 12:35 PM, Will Deacon will.deacon@arm.com wrote:
> Hi Mathieu, > > On Wed, Sep 16, 2015 at 04:18:39PM +0100, Mathieu Desnoyers wrote: >> ----- On Sep 7, 2015, at 12:15 PM, Mathieu Desnoyers >> mathieu.desnoyers@efficios.com wrote: >> >> > arm64 sys_membarrier number is already wired for arm64 through >> > asm-generic/unistd.h, but needs to be allocated separately for >> > the 32-bit compability layer of arm64. >> > >> > [ Untested on this architecture. To try it out: fetch linux-next/akpm, >> > apply this patch, build/run a membarrier-enabled kernel, and do make >> > kselftest. ] >> >> sys_membarrier has been merged into Linux 4.3-rc1. sys_membarrier can therefore >> be tested on top of Linus' master. > > Just to say that I'm happy to merge this once arch/arm/ also has the > syscall wired up. It'd be a bit weird to have the support in the arm64 > compat layer but not the arch/arm/ native kernel!
Sounds good! We're currently testing sys_membarrier on a wandboard. We'll provide feedback by replying to the ARM patch thread soon.
Thanks,
Mathieu
-- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com
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